The chA21 SCFV sequence will be synthesized by LCR assembly, using oligos given 
by gene2oligos. We get the DNA sequence of eGFP from existing plasmids using 
PCR. We create the SCFV-eGFP fused protein by connecting the chA21 SCFV 
sequence to the eGFP sequence using SOE PCR. A (Gly4Ser)3 linker is inserted 
during this process.